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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.xml.internal.ws.client;

import com.sun.xml.internal.ws.api.handler.MessageHandler;
import com.sun.xml.internal.ws.handler.HandlerException;

import javax.xml.namespace.QName;
import javax.xml.ws.handler.Handler;
import javax.xml.ws.handler.LogicalHandler;
import javax.xml.ws.handler.soap.SOAPHandler;
import java.util.*;

This class holds the handler information and roles on the Binding (mutable info in the binding).
HandlerConfiguration is immutable, and a new object is created when the BindingImpl is created or User calls
Binding.setHandlerChain() or SOAPBinding.setRoles().
During invocation in Stub.process(), snapshot of the handler configuration is set in Packet.handlerConfig. The
information in the HandlerConfiguration is used by MUPipe and HandlerTube implementations.
Author:
Rama Pulavarthi/**
 * This class holds the handler information and roles on the Binding (mutable info in the binding).
 *
 * HandlerConfiguration is immutable, and a new object is created when the BindingImpl is created or User calls
 * Binding.setHandlerChain() or SOAPBinding.setRoles().
 *
 * During invocation in Stub.process(), snapshot of the handler configuration is set in Packet.handlerConfig. The
 * information in the HandlerConfiguration is used by MUPipe and HandlerTube implementations.
 *
 * @author Rama Pulavarthi
 */
public class HandlerConfiguration {
    private final Set<String> roles;
    
This chain may contain both soap and logical handlers.
/**
     * This chain may contain both soap and logical handlers.
     */
    private final List<Handler> handlerChain;
    private final List<LogicalHandler> logicalHandlers;
    private final List<SOAPHandler> soapHandlers;
    private final List<MessageHandler> messageHandlers;
    private final Set<QName> handlerKnownHeaders;

    
Params:
roles –               This contains the roles assumed by the Binding implementation.
handlerChain –        This contains the handler chain set on the Binding/**
     * @param roles               This contains the roles assumed by the Binding implementation.
     * @param handlerChain        This contains the handler chain set on the Binding
     */
    public HandlerConfiguration(Set<String> roles, List<Handler> handlerChain) {
        this.roles = roles;
        this.handlerChain = handlerChain;
        logicalHandlers = new ArrayList<LogicalHandler>();
        soapHandlers = new ArrayList<SOAPHandler>();
        messageHandlers = new ArrayList<MessageHandler>();
        Set<QName> modHandlerKnownHeaders = new HashSet<QName>();

        for (Handler handler : handlerChain) {
            if (handler instanceof LogicalHandler) {
                logicalHandlers.add((LogicalHandler) handler);
            } else if (handler instanceof SOAPHandler) {
                soapHandlers.add((SOAPHandler) handler);
                Set<QName> headers = ((SOAPHandler<?>) handler).getHeaders();
                if (headers != null) {
                    modHandlerKnownHeaders.addAll(headers);
                }
            } else if (handler instanceof MessageHandler) {
                messageHandlers.add((MessageHandler) handler);
                Set<QName> headers = ((MessageHandler<?>) handler).getHeaders();
                if (headers != null) {
                    modHandlerKnownHeaders.addAll(headers);
                }
            }else {
                throw new HandlerException("handler.not.valid.type",
                    handler.getClass());
            }
        }

        handlerKnownHeaders = Collections.unmodifiableSet(modHandlerKnownHeaders);
    }

    
This is called when roles as reset on binding using SOAPBinding#setRoles(), to save reparsing the handlers again.
Params:
roles – 
oldConfig – /**
     * This is called when roles as reset on binding using SOAPBinding#setRoles(), to save reparsing the handlers again.
     * @param roles
     * @param oldConfig
     */
    public HandlerConfiguration(Set<String> roles, HandlerConfiguration oldConfig) {
        this.roles = roles;
        this.handlerChain = oldConfig.handlerChain;
        this.logicalHandlers = oldConfig.logicalHandlers;
        this.soapHandlers = oldConfig.soapHandlers;
        this.messageHandlers = oldConfig.messageHandlers;
        this.handlerKnownHeaders = oldConfig.handlerKnownHeaders;
    }

    public Set<String> getRoles() {
        return roles;
    }

    
Returns:
return a copy of handler chain/**
     *
     * @return return a copy of handler chain
     */
    public List<Handler> getHandlerChain() {
        if(handlerChain == null)
            return Collections.emptyList();
        return new ArrayList<Handler>(handlerChain);

    }

    public List<LogicalHandler> getLogicalHandlers() {
        return logicalHandlers;
    }

    public List<SOAPHandler> getSoapHandlers() {
        return soapHandlers;
    }

    public List<MessageHandler> getMessageHandlers() {
        return messageHandlers;
    }

    public Set<QName> getHandlerKnownHeaders() {
        return handlerKnownHeaders;
    }

}